private static async Task SendSongList(string toNumber, string fromNumber, IConfigurationRoot config)
        {
            var songlist = await JukeboxHelpers.GetStringifiedSongList(config["KontentProjectId"]);

            string API_KEY    = config["NEXMO_API_KEY"];
            string API_SECRET = config["NEXMO_API_SECRET"];

            var nexmoClient = new Client(creds: new Nexmo.Api.Request.Credentials(
                                             nexmoApiKey: API_KEY, nexmoApiSecret: API_SECRET));

            var results = nexmoClient.SMS.Send(new SMS.SMSRequest
            {
                from = fromNumber,
                to   = toNumber,
                text = songlist
            });
        }
 private static async Task PlaySong(StringValues stringValues1, StringValues stringValues2, int songNumber, IConfigurationRoot config)
 {
     var song = await JukeboxHelpers.GetSong(config["KontentProjectId"], songNumber);
 }